4.8 Article

Optical control of L-type Ca2+ channels using a diltiazem photoswitch

Journal

NATURE CHEMICAL BIOLOGY
Volume 14, Issue 8, Pages 764-+

Publisher

NATURE PUBLISHING GROUP
DOI: 10.1038/s41589-018-0090-8

Keywords

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Funding

  1. Deutsche Forschungsgemeinschaft [SFB 749, SFB 1116, TP A01]
  2. Center for Integrated Protein Science Munich (CIPSM)
  3. DFG [SPP1926]
  4. BMBF (DZHK) [FKZ: 81 x 2800159]
  5. Diabetes UK R.D. Lawrence [12/0004431]
  6. EFSD/Novo Nordisk Rising Star Fellowships
  7. Wellcome Trust Institutional Support Award
  8. COMPARE Primer
  9. MRC Project [MR/N00275X/1]
  10. ERC Starting Grants (OptoBETA) [715884]
  11. Deutsche Telekom Stiftung
  12. LMUMentoring program
  13. NSERC, Canada [GRPIN-2014-04894]
  14. Russian Science Foundation [17-15-01292]
  15. Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [GRK1873, SA 1785/7-1, SA 1785/9-1]
  16. Russian Science Foundation [17-15-01292] Funding Source: Russian Science Foundation
  17. MRC [MR/N00275X/1] Funding Source: UKRI

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L-type Ca2+ channels (LTCCs) play a crucial role in excitation-contraction coupling and release of hormones from secretory cells. They are targets of antihypertensive and antiarrhythmic drugs such as diltiazem. Here, we present a photoswitchable diltiazem, FHU-779, which can be used to reversibly block endogenous LTCCs by light. FHU-779 is as potent as diltiazem and can be used to place pancreatic beta-cell function and cardiac activity under optical control.

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